Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept
文献类型：期刊论文
| 作者 | Jia, Guozhang2 ; Liu, Xiaoju2; Xu, Guosheng2,3; Wang, Liang2; Zhu, Sizheng2; Xie, Hai1,2; Si, Hang2; Sang, Chaofeng4; Yang, Zhongshi2; Xu, Jichan2
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| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 27 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/1.5133832 |
| 通讯作者 | Jia, Guozhang(gzjia@ipp.ac.cn) |
| 英文摘要 | In order to fulfill the requirements for future high-power and long-pulse discharges in the Experimental Advanced Superconducting Tokamak, the present lower graphite divertor will be upgraded with tungsten (W) materials. For one of the new divertor options obtained during the physics design phase, simulations of argon (Ar) seeding are performed by using the SOLPS-ITER code suite. Besides the deuterium and Ar species, all the ionization states of W species generated through physical sputtering have been included in the simulations. As the seeding rate increases, the total power dissipation dominated by Ar radiation increases gradually. Obvious Ar radiation loss in the divertor region is observed. Meanwhile, a high pressure area in the scrape-off layer side of the outer strike point is formed near the corner due to the closed structure. As a result, the outer divertor detaches before the inner divertor, and the maximum T-e at the outer target reduces to 5eV at a puffing rate of 4.0x10(19) atoms/s. The total heat flux onto the inner and outer target plates, dominated by the charged particles, can be reduced simultaneously. The sputtering rate of W atoms along the divertor plates and the distribution of W impurities in the poloidal cross section are given. The W concentration inside the last closed magnetic flux surface can be controlled to the order of 10(-5). |
| WOS关键词 | ASDEX-UPGRADE |
| 资助项目 | National Key R&D Program of China[2017YFE0300400] ; National Key R&D Program of China[2017YFE0300402] ; National Key R&D Program of China[2017YFE0300501] ; National Key R&D Program of China[2018YFE0303103] ; CAS Key Research Program of Frontier Science[QYZDB-SSW-SLH001] ; National Magnetic Confinement Fusion Science Program of China[2015GB101003] ; NSFC[11505227] ; NSFC[11875287] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER INST PHYSICS |
| WOS记录号 | WOS:000541898100001 |
| 资助机构 | National Key R&D Program of China ; CAS Key Research Program of Frontier Science ; National Magnetic Confinement Fusion Science Program of China ; NSFC |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/43166]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Jia, Guozhang |
| 作者单位 | 1.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230029, Peoples R China 4.Dalian Univ Technol, Sch Phys, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Guozhang,Liu, Xiaoju,Xu, Guosheng,et al. Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept[J]. PHYSICS OF PLASMAS,2020,27. |
| APA | Jia, Guozhang.,Liu, Xiaoju.,Xu, Guosheng.,Wang, Liang.,Zhu, Sizheng.,...&Li, Hang.(2020).Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept.PHYSICS OF PLASMAS,27. |
| MLA | Jia, Guozhang,et al."Simulations of Ar seeding by SOLPS-ITER for a slot-type divertor concept".PHYSICS OF PLASMAS 27(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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